17556+2508 COU 503

 
 
17H 55M 36.15S +25 07' 54.4" P.A. 116 SEP 0.4 MAG 8.50,9.53 SP A3 DIST. 340.14 PC (1109.54 L.Y.)
 
 
Coord 2000
17556+2508
Discov num
COU 503
Comp
Coord arcsec 2000
17 55 36.15 +25 07 54.4
Date first
1970
Date last
2007
Obs
18
Pa first
77
Pa last
116
P.A. Now (θ)
116°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
8.50
Mag sec
9.53
delta mag (ΔM)
1.03
Spectral class
A3 (white)
Pri motion ra
-011
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
85548
HIP
87759
Tycho2
2094-00886-1
HD
163529
BD
BD+25 3381
Distance
340.14
Distance ly
1109.54
last precise pa
116.2
last precise sep
0.404